Leaf mustard

Rapeseed/Canola belongs to the turnip rutabaga, cabbage, Brussels sprouts, and mustard family of crops that can be grown at low temperatures and moderate humidity. Three species have been grown as oilseeds Brassica napus, known in Europe as rape, oil rape, Swede rape, and Argentine rape B. campestris, known as rapeseed, oil turnip, turnip rape, and Polish rape and B. juncea, known as leaf mustard, brown mustard, Oriental mustard, and Indian mustard. B. campestris was grown in India as early as 2000-1500 BC. 

The frequency of genes for the absence of erucic acid in rape, turnip rape, and other closely related species appears to be very low. If seed oils low in erucic acid content were available within leaf mustard (Brassica juncea) this species, now grown for edible oil in India and China, could become an edible oil crop in other countries. Efforts to find genes for the absence of erucic acid in this species have been under way for a number of years in several countries, and individual plants from 8. juncea which produce seed oils essentially free from erucic acid have been isolated recently (Kirk and Oram, 1981). 

Brj leaf mustard Amr common amaranth Che goosefoot Ech barnyard grass Dig crab grass Sef giant foxtail... 

IJ-13, and IC-22 were further compared at 300 g ai/ha. The results of herbicidal activity against leaf mustard, common amaranth, goosefoot, barnyard grass, crab grass, and giant foxtail are listed in Tables 2.48 and 2.49. 

Ama common amaranth Che goosefoot Bra leaf mustard Ipo morning glory... 

Fig. 2.17 Effect against leaf mustard for post-emergence application at 75 g ai/ha (after 1 day)...

Bij leaf mustard Cas sickle senna Eel white eclipta Amr common amaranth Cer field chickweed For common purslane... 

The post-emergence herbicidal activity of IIID-5 and niD-6 against barnyard grass, green bristlegrass, crab grass, leaf mustard, amaranth, and chingma abutilon. 

Bq leaf mustard Amr common amaranth Abu chingma abutilon Ech barnyard grass Set green bristlegrass Dig crab grass... 

Abu chingma abutilon Bij leaf mustard Amn common amaranth Eel white eclipta Ech bamyaid grass Dig crab grass Set green bristlegrass... 

Inhibitory potency (%) against the growth of plants in the greenhouse, 0 (no effect), 100 % (completely kill) Brj leaf mustard Amr common amaranth Eel white eclipta... 

As seen from Table 5.15, IVC-I6 and IVC-18 only had 80-90 % inhibition against leaf mustard, but weaker herbicidal effect against common amaranth and white eclipta at 37.5 g ai/ha. Other compounds IVC-I5 and IVC-I9 showed much weaker herbicidal effect against tested broad-leaved weeds at 37.5 g ai/ha. The herbicidal activity of cyclic phosphonates IVC-I5, IVC-I6, IVC-18, and IVC-I9 were not comparable to clacyfos (IC-22, HW02). 

Compared with clacyfos (IC-22, HW02), IVD-12 exhibited a shghtly higher herbicidal effect against broad-leaved weeds, leaf mustard or common amaranth, and also showed much higher herbicidal activity against monocot weeds than that of clacyfos. However, cyclic 1-hydroxyalkylphosphonates IVA and IVB had no significant herbicidal activity (Sect. 5.1.5). All cyclic phosphonates IVC were also not comparable to clacyfos. 

Cyclic phosphonates IVE-2, IVE-7, IVE-9, IVE-Il, IVE-12, and IVE-13 were further examined for their post-emergence herbicidal activity against leaf mustard, common amaranth, and white eclipta at 75 and 37.5 g ai/ha, respectively (Table 5.20). The results showed cyclic phosphonates IVE-2, IVE-7, IVE-9, and IVE-11 stiU exhibited significant post-emergence herbicidal activity against all... 

Blj leaf mustard Amn common amaranth Eel white eclipta... 

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